/* Name
 * CSE Account #
*/

import java.io.PrintStream;
import java.util.Scanner;

public class Spheres
{
    public static void main(String[] args)
    {
        PrintStream output = System.out;
        Scanner input = new Scanner(System.in);

        output.print("Total volume of liquid (in meteres cubed): ");
        double vTotal = input.nextDouble();

        output.print("Volume of each container (in meters cubed): ");
        double vContainer = input.nextDouble();

        int nContainer = (int) Math.ceil(vTotal / vContainer);
        final double C = 3.0 / 4.0 / Math.PI;
        double radius = Math.cbrt(C * vContainer);
        double length = 2.0 * nContainer * radius;
        output.printf("The length of the containers is: %.2f meters%n", length);
    }
}